diff --git a/roles/discourse/templates/app.yml b/roles/discourse/templates/app.yml
index f5393ac..86071b9 100644
--- a/roles/discourse/templates/app.yml
+++ b/roles/discourse/templates/app.yml
@@ -6,7 +6,7 @@
 ##
 ## After making changes to this file, you MUST rebuild
 ## /var/discourse/launcher rebuild app
-## Rebuild WILL cause ~10mn of downtime.
+## Rebuild WILL cause ~13mn of downtime.
 ##
 ## visit http://www.yamllint.com/ to validate this file as needed
 
@@ -54,6 +54,7 @@ hooks:
           - git clone https://github.com/discourse/docker_manager.git
           - git clone https://github.com/discourse/discourse-calendar.git
           - git clone https://github.com/discourse/discourse-solved.git
+          - git clone https://github.com/discourse/discourse-data-explorer.git
 
 ## Any custom commands to run after building
 run: